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(No MOdel.)

A. A. WHIPPLE. PORTABLE Poo'r WARMER, Re.

No. 490,091. Patented Jamt 17, 1893.

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Unrrnn STATES harem ALICE A. WHIPPLE, OF PROVIDENCE, RHODE ISLAND.

PORTABLE FOOT-WARMER, eze.

SPECIFICATION forming part of Letters Patent No. 490,091, dated January17, 1893.

Application filed February 29, 1892. Serial Nol 423,266- (llo model.)

To all whom it may concern:

Be it known that I, Amon A. Wnirrnn, a citizen of the United States,residing at Providence, in the county of Providence and State of RhodeIsland, have invented certain new and useful Improvements in PortableFootl-Varmers or Hot-Water Vessels for Carriages, dto.; and I do herebydeclare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same, reference being had to theaccompanying drawings, and to letters of reference marked thereon, whichform a part of this specification.

In the device forming the subject of my present invention the object Ihave had in view is to prod nce an improved portable hotwater vessel,the novelty of its construction and arrangement being such as torenderit more especially adapted as a foot-warmer to be used in carriages,dac.

I-Ieretofore, it has been usual in heaters of the class just referred toto employ rubber bottles or bags adapted to contain hot water. There areobjections to such rubber vessels because the action of hot water soondestroys the life of the rubber or holder so that after a while itbecomes inelastic, the seams are liable to open and the walls are easilyfractured. Even at their best such rubber vessels when filled cannotwithstand much external pressure Without bursting. lVhile, as juststated, it is usual to employ Water bottles made of rubber or othersuitable flexiblc material, yet I am aware that a portable warmingapparatus, cylindrical in forni and made of' metal has been devised forthe use of persons traveling, die. By means of my improved vessel orheater the disadvantages resulting from the use of rubber bottles areovercome. It will retain the heat longer than rubber vessels; itoccupies but little room when in use; it is readily adjustable tocarriages varying in Width; it is adapted and intended to sustain theweight of persons while they are enterinfT or alighting from thecarriage; it can be quickly filled with hot-water; it can be handledwith ease and safety, and it is more efficient and serviceable thancarriagelieaters of this class heretofore produced. In

order to accomplish the advantages just enumerated I have devised aheater or footwarmer consisting essentially of a flattened and stiffenedsheet metal shell arranged to be charged with hot water and providedwith means whereby the heater can be adjustably fitted to the carriage,all as will be more 'fully hereinafter set forth and claimed.

In the drawings, illustrating myinvention, Figure l is a perspectiveview of a heater or foot-warmer embodying my improvement; Fig. 2 is aplan view, in horizontal section, showing the interior arrangement; Fig.3 is an enlarged longitudinal sectional view, taken on line c: a: ofFig. 2, showing means for adjusting the length of the heater; Fig. t isa similar sectional View, taken on line o, o, of Fig. 2, showing thefilling nozzle and cap screwed thereon; Fig. 5 is a partial transversesectional view, taken on line t, t, of Fig. 2, showing perforated staysor partitions, and Fig. 6 is a transverse sectional View, taken throughthe bottom of a carriage, showing the heater in position, as in use.

It will be seen upon referring to the drawings that the Water-tightshell or body portion c of my improved heater A presents a comparativelylarge heating surface or area although its depth is quite small, therebyoccupying but little floor space. In order to reduce its weight Ipreferably malte the shell of thin sheet metal, say copper having abright or planished surface, and provide the interior or water-holdingchamber with a series of snit-able stays or ties uniting the upper andlower sides of the shell.

In the drawings I have represented a numbei of thin partitions 29arranged in a zigzag manner, these serve to prevent the sides fromcollapsing while the heater is being subjected to considerable externalpressure, as when supporting the weight of a person. These stays orpartitions may be perforated, as at u Fig. 5, or constructed andarranged in any other suitable manner to facilitate the circulation ofwater throughout the interior of the shell a. One end of the shell isprovided with a screw-threaded charging nozzle d. communieating with theinterior chamber; a similarly threaded cap-nut e being used to close thenozzle after the vessel is lilled. The cap is attached to the heater bya chain f.

As drawn the ends of the heater are pro- ICO vided each With twolaterally separated projecting guide-tubes c united by a tie h whichalso serves as a convenient handle for carrying the heater about. Theinner` ends of these tubes are closed; the outer ends are open and areprovided each with an adj usting pin or hollow stop l? fitted to moveendwise therein. An expansion spring s is attached to both the tube andstop, see Fig. 8. The purpose of theseyielding stops is to hold theheater in position when in use.

In service the heater A is, after irst being filled with hot Water,placed, .upon the iioork m (shown sectionallyin Fig. 6) of a carriage,the spring-resisted holding pins or stops?) then bearing against theinner side of the carriage frame m, as indicated. The shell a may becovered with cloth or felting or other suitable material if desired.'The ends ofthe pins b may be similarly covered or rough ened to preventthe heater from being accidentally moved When in position. It can bereadily detached from the carriage by pressing the heater endwise and atthe same time lifting it.

It `Will be seen that the heater can be used reversed and invertedWithout aecting its efficiency, as both sides are alike and both endsare also substantially alike.

I Wo uld add that when it is usedin a carriage I prefer to place it uponthe door just in front of the carriage seat so that a persons feet canrest directly upon its surface.

y I claim as my inventionl. A portable foot-Warmer for carriages, the

same consisting of a ilattened and stayed sheet-'metal vessel having acharging inlet communicating with the interior, and provided Withyielding ends arranged to holdy In testimony whereof I have affixed mysigg naturein presence of two Witnesses.

ALICE A. WHIPPLE. lVitnesses:

CHARLES HANNIGAN, GEO. H. REMINGTON.

